General Service Control Valves

DISFLO

EFLO

General Service Control Valves

• GFLO Globe Control Valve - The GFLO globe control valve offers superior performance in liquid and gaseous services, while permitting easy, fast and inexpensive maintenance. Unlike diaphragm-operated control valves, the spring cylinder-actuated GFLO provides stiffness and maintains high positioning accuracy, repeatability, controlled high speed and faithful response. And since it handles up to 150 psig / 10.3 Barg supply air, it also has the thrust to shut off against much higher fluid pressures.

Most diaphragm actuators rely entirely on springs to close the valve. But the design of the GFLO is such that the spring, the supply air pressure, and the fluid pressure itself combine to produce exceptionally tight shutoff. A self-aligning seat ring further enhances the shutoff capability of the GFLO.

Many common maintenance problems with globe valves can be traced to cage-guiding. The close metal-to-metal contact between the cage and plug often result in galling and sticking. That is why the GFLO is double-top stem guided. It completely avoids contact between the plug and seat retainer.

The clamped-in seat and top entry trim permits easy, quick maintenance. Plus, with GFLO's high degree of parts interchangeability, fewer inventory parts are needed. The actuator is also lighter, smaller and easier to handle than comparable diaphragm actuators.

With MASCOT's customer first approach standard GFLO's can be delivered in 1 to 2 weeks. MASCOT's GFLO... the simple, reliable, tough globe valve.

• VLFO V-Ball Control Valve - Sturdy VFLO Characterised V-notch ball valve is available in sizes 2 through 14 inch ANSI Classes 150, 300 and 600 and in all castable materials. It is designed to overcome the problems of particle entrained processes. VFLO solves many long standing problems faced by traditional ball valves, such as:

√ Inadequate shutoff capabilities.

√ Piping forces that unevenly load the seat.

√ Low rangeability due to limited orifice characterisations.

VFLO reduces torque loads that adversely affect sealing and exceeds 300 to 1 rangeability with strong shearing capacity. VFLO achieves Class IV shutoff with a metal seal and Class VI shutoff with a soft seal. Many important features and options which VFLO uses to fulfill these and other requirements for ruggedness and high performance are listed below.

• DISKFLO High Performance Butterfly Control Valve - The DISKFLO eccentric disc rotary control valve achieves bi-directional bubble-tight shutoff while maintaining low breakout torque at both high & low pressure drops. It is available in ANSI Classes 150 thru 1500 and in sizes 2 through 72-inch. This MASCOT rotary valve is available in carbon steel, 316 stainless steel and other alloys.

Eccentric Disc seating assures low breakout torque by utilizing the pressure drop across the valve to aid the seating process. Since much of the seating force is supplied by the pressure drop, the need for strong actuator seating force – and therefore breakout torque – is reduced. Combined with DISKFLO's high-thrust cylinder actuator and eccentric-cammed disc, it is possible to achieve especially high-performance throttling – even in large pressure drops close to the seat.

A double offset has been designed into the disc to lift it out of the seat immediately upon actuation. This avoids wear on the seat and disc, reducing leakage and parts replacement. It also improves throttling by eliminating friction.

• FLUSHFLO Control Valves - FLUSHFLO is a high performance flush bottom discharge valve suitable for tank and vessel draining. It is suitable in all castable alloy, jacketed valve body and glass Teflon lining up to 6.0